Head to head · Esign send · October 2026 research run
Docusign vs airSlate SignNow
airSlate SignNow scores 68.5 (B) on agent readiness against Docusign's 62.5 (B), and leads in 4 of 7 scored categories. Docusign leads on maintenance & community. Both do esign send.
Which one, for what
Docusign B
Good for Teams whose company already uses Docusign and needs an agent to send envelopes from templates, embed signing and track status with a full audit trail.
Ahead on
- Maintenance & community, 81 against 72
Watch for
health.docusign.com lists 34 incidents since 9 July 2026, including a two-hour NA4 disruption on 30 July and email notification failures from 25 to 30 September
Good for An agent that sends agreements from templates, embeds signing in another product or tracks invites, and teams that want per-invite pricing with a free test mode.
Ahead on
- Reliability, 93 against 57
- Schema & documentation, 81 against 70
- Payments & pricing, 35 against 30
Also in its favour
- Runs on your own machine
Watch for
API keys don't expire and work for all API requests. Narrower access needs an OAuth token requested with a URL-pattern scope
Score by category
| Category | Weight this run | Docusign | airSlate SignNow | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 57 | 93 | airSlate SignNow +36 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 70 | 81 | airSlate SignNow +11 |
| Agent ergonomics | 13%16.2 | 70 | 66 | Docusign +4 |
| Security & auth | 14%17.5 | 64 | 62 | Docusign +2 |
| Payments & pricing | 10%12.5 | 30 | 35 | airSlate SignNow +5 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 81 | 72 | Docusign +9 |
| Transparency & trust | 7%8.8 | 72 | 74 | airSlate SignNow +2 |
| Negative events | ≤15 | 0 | -2 | |
| Total | 62.5 · B | 68.5 · B |
Facts side by side
| Fact | Docusign | airSlate SignNow |
|---|---|---|
| Kind | HTTP API | HTTP API |
| Vendor | Docusign, Inc. | airSlate, Inc. |
| Hosted endpoint | https://mcp.docusign.com/mcp | https://api.signnow.com |
| Transports | HTTP | HTTP, Streamable HTTP, stdio |
| Auth | OAuth | OAuth or key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | Proprietary service under Docusign's Master Services Agreement. The OpenAPI specifications repository and the eSignature SDKs on GitHub are MIT | Proprietary service under the SignNow Terms of Service. The MCP server and the SDKs on GitHub are MIT |
| Tools exposed | 42 | 21 |
| Read-only variant documented | no | yes |
| llms.txt | no | yes |
| MCP registry | not listed | io.github.signnow/sn-mcp-server |
| Last release | 2026-09-30 | 2026-09-03 |
| Terms last updated | no date given | 2023-03-02 |
| Privacy policy last updated | 2025-10-09 | 2026-08-12 |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 543k npm/wk, 306k PyPI/wk | 8 stars, 7.7k npm/wk, 5.3k PyPI/wk |
Verdicts
Docusign
The eSignature REST API has public Swagger and OpenAPI files on GitHub, OAuth 2.0, a free developer sandbox and Connect webhooks, and the MCP server reached general availability on 30 September 2026. Production needs a paid plan from $50 a month and a Go-Live review, and the status site lists 34 incidents since 9 July 2026.
airSlate SignNow
The REST API has a public OpenAPI 3.0 spec with 354 operations, Markdown docs, a free Development mode with 500 invites and a hosted MCP server with OAuth. API keys don't expire and carry full account access, no idempotency keys were found, and the MCP server's GitHub repository was archived when checked on 7 October 2026.
Before you call either
Docusign
- Call /oauth/userinfo once after sign-in, cache
base_uriand the account ID, and send every eSignature call to that host under /restapi/v2.1 - Create and send an envelope in one Envelopes:create call with
statusset tosent. Docusign asks for five calls or fewer per envelope - Subscribe to Connect or set
eventNotificationfor status. Polling one envelope more than once every 15 minutes is flagged and can fail the Go-Live review - Set
transactionIdon envelope creation so a retry after a lost response can find the envelope. The ID is valid for seven days - Read
X-RateLimit-ResetandX-BurstLimit-Remaining, and stop calling until the reset after a 429
airSlate SignNow
- Call https://api.signnow.com with
Authorization: Bearer <API key or access token>. Development and Live share this host, and Development documents carry a watermark - Request OAuth tokens with a narrow
scopesuch asdocument/* GET/user. The default*grants every API action - Read
X-RateLimit-RemainingandX-RateLimit-Reseton each response. The limit is 500 requests an hour in Development and 1,000 in Live, and 429 has no Retry-After - Check invite status before resending. No idempotency key exists, and a repeated invite call counts as another charged invite
- Set
secret_keywhen creating an event subscription and verifyX-SignNow-Signature(HMAC SHA-256 of the body) on every callback
Questions
Which is better for AI agents, Docusign or airSlate SignNow?
airSlate SignNow scores 68.5 (B) on agent readiness against Docusign's 62.5 (B), and leads in 4 of 7 scored categories. Docusign leads on maintenance & community.
Do Docusign and airSlate SignNow need an API key?
Docusign uses an OAuth sign-in. airSlate SignNow takes an API key or an OAuth sign-in.
Can an agent call Docusign and airSlate SignNow without installing anything?
Yes. Docusign has a hosted endpoint at https://mcp.docusign.com/mcp and airSlate SignNow at https://api.signnow.com.
Other comparisons with Docusign or airSlate SignNow
Machine-readable
- This page as Markdown
/compare/docusign-vs-signnow.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/docusign.json·/api/v1/tools/signnow.json - From a terminal
anchor compare docusign signnow(the CLI) - Over MCP
compare_tools {"a": "docusign", "b": "signnow"}at/mcp, no key